lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:6 errors:0 dropped:0 overruns:0 frame:0
TX packets:6 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
可以看到这台主机的eth0的ip地址是192.168.100.134.现在修改/etc/SendMail.cf文件来配置SendMail的监听端口:
# SMTP daemon options
O DaemonPortOptions=Port=smtp,Addr=127.0.0.1, Name=MTA
更改为
O DaemonPortOptions=Port=smtp,Addr=192.168.100.134, Name=MTA
改完后保存退出,并且重新启动SendMail服务:
[root@testmail /root]# /etc/init.d/SendMail restart
Shutting down SendMail: [ OK ]
Starting SendMail: [ OK ]
[root@testmail /root]#
现在可以用netstat -nl来查看是不是已经更改了.如你所看到的,SendMail的监听端口现在是eth0的ip地址:192.168.100.134了.
[root@testmail /root]# netstat -nl
Active Internet connections (only servers)
Proto Recv-Q send-Q Local Address Foreign Address State
tcp 0 0 0.0.0.0:32768 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:111 0.0.0.0:* LISTEN
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN
tcp 0 0 192.168.100.134:25 0.0.0.0:* LISTEN
udp 0 0 0.0.0.0:32768 0.0.0.0:*
udp 0 0 0.0.0.0:667 0.0.0.0:*
udp 0 0 0.0.0.0:111 0.0.0.0:*
Active UNIX domain sockets (only servers)
Proto RefCnt Flags Type State I-Node Path
unix 2 [ ACC ] STREAM LISTENING 1119 /dev/gpmctl
unix 2 [ ACC ] STREAM LISTENING 1172 /tmp/.font-unix/fs7100
[root@testmail /root]#
///////////////////////////////////////////////////////////////
现在SendMail已经可以接收来自外部的连接了.我们还需要设定SendMail允许接收的域名.这个可以在/etc/mail/local-host-names文件中设定.就把域名输入进去就可以了:
# local-host-names - include all aliases for your machine here.
blank.com
保存退出后重新启动SendMail服务:/etc/init.d/SendMail restart .这样SendMail就可以接收来自多个域的信件了.
如果你需要再增加新的域,只有修改这个文件就可以了.
……